CA1244202A - Method for the embodiment of brooms, brushes and similar articles, and a broom or brush obtained therewith - Google Patents
Method for the embodiment of brooms, brushes and similar articles, and a broom or brush obtained therewithInfo
- Publication number
- CA1244202A CA1244202A CA000483828A CA483828A CA1244202A CA 1244202 A CA1244202 A CA 1244202A CA 000483828 A CA000483828 A CA 000483828A CA 483828 A CA483828 A CA 483828A CA 1244202 A CA1244202 A CA 1244202A
- Authority
- CA
- Canada
- Prior art keywords
- solid back
- lands
- tufts
- broom
- land
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D3/00—Preparing, i.e. Manufacturing brush bodies
- A46D3/04—Machines for inserting or fixing bristles in bodies
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B9/00—Arrangements of the bristles in the brush body
- A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B2200/00—Brushes characterized by their functions, uses or applications
- A46B2200/30—Brushes for cleaning or polishing
- A46B2200/302—Broom
Abstract
METHOD for the EMBODIMENT of BROOMS, BRUSHES and SIMILAR ARTICLES, and a BROOM or BRUSH OBTAINED THEREWITH
ABSTRACT of the DISCLOSURE
The method disclosed envisages embodiment of a solid back carrying tufts of bristles or fibers &c which is provided, at least along the stretches near its outermost ends, with a series of sloping lands having an angle of inclination that is progressively less accentuated the nearer a single land is located to the middle section of the surface on which it is formed. Each land is provided with a corresponding hole whose axis is disposed normal or substantially normal to the land, whilst the remaining part of the surface is provided with uniformly-distributed holes the axes of which are either normal or marginally inclined relative to the surface itself. At least one tuft is set into each hole in such a way that the projecting tips of the bristles or fibers lie within a common plane.
ABSTRACT of the DISCLOSURE
The method disclosed envisages embodiment of a solid back carrying tufts of bristles or fibers &c which is provided, at least along the stretches near its outermost ends, with a series of sloping lands having an angle of inclination that is progressively less accentuated the nearer a single land is located to the middle section of the surface on which it is formed. Each land is provided with a corresponding hole whose axis is disposed normal or substantially normal to the land, whilst the remaining part of the surface is provided with uniformly-distributed holes the axes of which are either normal or marginally inclined relative to the surface itself. At least one tuft is set into each hole in such a way that the projecting tips of the bristles or fibers lie within a common plane.
Description
:``
_ _ 03 The invention relates to the manufacture of 04 brooms, brushes and similar articles utilized for 05 household or general sweepiny and cleaning.
06 An understanding of the invention will be 07 obtained by reading the description below, in conjunction 08 with the following drawings, in which:
09 Figures 1, 2 and 3 illustrate broomheads obtained with prior art methods, 11 Figure 4 is the schematic representation, viewed 12 from one side and in cutaway, of a broomhead obtained with 13 the method disclosed herein;
14 Figures S and 8 are schematic represenatations, viewed in perspective from one side, of two alternative 16 embodiments of a broom back obtained with the method 17 disclosed herein;
18 Figure 6 is the schematic representation of a 19 special effect obtainable in practical application, showing a broom obtained with the method disclosed herein;
21 Figure 7 is the schematic represenation, viewed 22 from one side, of a broom incorporating a back the 23 embodiment of which is a variation on that of Figure 4.
~ll244~
.
Conven-tional manu~acture of such cl.ean.ing aids, at industrial level, envisages the embodiment of a solid back wh~ch carries small bunches either of na-tural bristles or of synthetic fibers, Icnown as tufts, and permits of attaching a staff or handle for ultimate use, by hand, oE the Einished ar-ticle.
Such backs are generally flat, though in some embodiments may either exhibit curved or bent-upward longitudinal ends, or be curved through their entire lengkh, as illustrated in figs 1~ 2 and 3, and are provided with stopped holes distributed uniformly over the surface opposite that to which the handle`
. is attached.
The holes thus produced accommodate tufts of fibers. Such fibers, of a given selected type, are bunched together into small bundles approximately twice the length X (fig 1) of the formed tuft which ultimately projects from the back of the finished broomhead, the bundle of fibers being bent double into a U thereby providing a fold by means of which ~'~4~Z~Z
to facilitate insertlon of the tuft into a corres-ponding hole offered by the back. Dril:ling of,holes in the back and insertion of the -tuPts therein are operations accomplished by :Loca-ting the baclc in a 05 three-dimensional pantograph-type copying ji~ which permits ~ovement about a fulcrum coincident with the axis passing through the center of the back, and located at a point distanced from the side to which the handle is ultimately attached~ In thi.s way it becomes possible to produce hoIes in the solid back.
that are angled with respect to -the surface fro~
which the tufts project, in such a way as to fan out the pattern of the tufts, at least toward the outer ends of the back.
Such fanning-out of the tuft pattern performs two functions: first, that of increasing the overall length of contact L between the fibers and the sur-face to be swept, in relation to the len~th of the back; and second, that of permitting access to tioht corners and skirtin~s when sweeping, without any ob-struction from the back of the broomhead itself.
The prior art makes provision, when utilizin~
flat backs of the type illustrated in fig 1, ei-ther for rounding-off or beveling the ends, which permits only a limited fan-out of the tuft pattern h~wever, ~, . .
~;~491~;~V~3 as malleuver of the back relcl-tive to the tool dur-ing drilling is poss:ibLe only in a very lim:itecl measure.
The drill bits are in fact unable -to penctrate a surface sharply angled relative to their own a~:is, 05 and must be safeguarded erom the risk of breakage caused -through excessive bending stress. The result is that the distance D be-tween the outermost ends of the back and the tips of the outer tufts (which pro-ject from the outermost ends of the back) is often insufficient to ensure that the back of the broom-head will not itself constitute an obstruction to efficient sweeping of tight corners and skirtings.
In an attempt to improve the situation thus described, use has been made of backs as illustrated in figs 2 and 3 of the drawings. In these i~stances however, the overall length of contact L between the fibers and the surface to be swept is shortened, by reason of the fact that the tips of the outer tufts are raised from the surface on which tufts located along the middle section oE the back come to rest.
At all events, the distance D between the outermost ends of the back and the tips of the outer tufts is barely greater than the distance D as illustrated in fig 1, and as such, is insufficient to provide an effective solut.ion to the problem of sweepin~ tight d~ ~
~2~
corners and skirtings.
S-tudying the -type of relati.ve movem.ent wi.th which a brush or broom back is usually :invested when drilling holes ancl subsequently inserting -the tuEts 05 (bristle or synthetic fiber), the applicant observes that, were the back to be provided with a series of flat, concave or convex angled surfaces, along the longitudinal stretches nearest -the outermost ends at least, such as will offer points of contac-t lying at right angles to the drill-bits and tufting tools in any given location, it would be possible to embody a broomhead, for exa-nple, wherein the tufts projecting from the solid back could be fanned out to a notable degree. Furthermore, the applicant observes that by inserting tufts of greater length into these holes loFated near the outermost ends of the back, than those inserted into the uniformly-distributed holes Oe the middle section, one obtains a broomllead which in addltion to exhibiting a notably fanned-out tuft pattern, is embodied such that the tips of all the tufted bristles or fibers may lie within a common plane. The combined effect of these two techniques would be such as to permit embodiment of a broom capable of affording the optimum solution to those problems described above.
124~2~;~
02 SUMMARY OF THE INVEN~IO~
___ 03 In the light of the Eoregoing bbservations, the 04 applicant discloses a me-thod for making brooms, brushes 05 and similar articles, comprising the following steps:
06 providing a solid back which carries tufted fibers and 07 exhibits a surface, at the opposite side to that where a 08 handle is ultimately attached, providing at least along 09 the stretches nearest to its outermost ends a series of sloping lands which create an acute angle with the surface 11 and of which the inclination relative to the surface 12 becomes progressively less accentuated. The nearer the 13 land is located to the middle section of the solid back;
14 forming in each sloping land holes or seats the axis of which are disposed substantially normal to the land; and 16 forming, in the remaining part of the surface, uniformly 17 distributed holes or seats, inserting tufted fibers of 18 desired length in the holes of the sloping lands, and in 19 the holes of the middle section of the same surface, and providing the tips of all the tufted fibers lie in a 21 common plane.
'~
In a preferred version of the method as clis-closed herein~ the tips of all the tufts inserted into the back are trimmed by shaving, to the end of aligning the tips of the tufted fibers to a greater degree of prec.ision within the common plane afore-. said; also, the shaving operation is carried out in such a way as to ensure that the plane lies parallel to the surface from which the tufts project.
In a first variation of the method, by means of which it is sought to incline the handle of the broom with respect to the vertical, thereby afford-ing advantage to the user in certain circumstances, shaving is carried out in such a way that the p~lane in which the tips of tufted fibers are caused to lie will be angled in relation to the surface from which the tufts project.
In a second varia-tion ofthe method, the angle of the sloping lands is such that each single land, viewed from one side, lies substantially normal to a straight line that connects it with a fulcrum point about which the back is rotated for the purposes of ~ .
124~
Referr.ing to f:igs 4 ancl S, the solid baclc I
of a broom- or brush-head according to the invention has stretches la nearest the outermost ends 2 which exhibit a series of sloping lands 3 formed on the surface 4 opposite the surface 5 which connec-ts with the staff, or handle (not denoted in the drawings).
These lands 3 form an acute angle n with the surface 4 of -the back 1, w~ich diminishes progress- -ively the nearer the single land 3 is located to the middle section of the back 1, hence to -tha-t part of the surface 4 exhibiting no lands. For example, the angle denoted ni descriptive of the land 3l in fig 4 located nearest the middle section of the sy ~ ce 4, is much narrower than the angle n descrip~ive:of the _ land 3 located at the outermost end of the back 1.
As fi~ S illustrates, the lands 3 are formed on the surface 4 in a number of files denoted F, Fl and F 2 which lie parallel to the longitudinal-median directrix of the solid back 1, and are disposed in ~ , :
.
~2~2~1Z
ranks R-, R 2 Lying normal to the same direc-trlx.
- Observing -the finished broomhead, it wil] be seen that such an arrangement allows tufting o~ the surface 4 to maximum possib:Le capacity; viewing the 05 broom from one side, practical:Ly no voids will be discernable between the ~arious tufts makin~ up the broomhead.
In a preferred version of the methodJ the angle of the lands 3 is determined such that each single land lies substantially normal to a straight line 6 connecting it with a fulcrum point 7 about which the solid back 1 is rotated for the purposes of drilling holes, and subsequently, of inser-ting tufted fibers 8 thereinto.
Embodied thus, one has the possibility when drilling the solid back 1, of offering parts of its surface 4 to the drill bits which are disposed at right angles, or substantially at right angles, to the axes of the bits themselves, thereby permi-tting O operation of the bits without any danger of breakage occurring by reason of their being subjected to ex-cessive bending stress. The result of this procedure is that the tufts 8, especially those toward the two outermost ends 2 of the broomhead, assume a notably fanned-out appearance such as will greatly favor an ~2~za~
additional eEfect (shortly -to be described) which derives from another ~eature of the method.
As mentloned pre-viously in the introduc-tory part of the application, it is important that the 05 tips of the tufted fibers located nearest the outer-most ends 2 of the back 1 be dis-tanced considerabLy from these ends to facilitate the sweepin~ of ti~ht corners and skirtings. In the method accordin~ to the invention, fibers to be inserted in the holes 16 drilled in the lands 3 are selected such that the length of the tufts 8 in one rank differs from that of the tufts in the next. In this way one obtains a distance D Ibetween the tips of the outer tufts 8 and the outermost ends 2 of the baclc 1 much greater than the equivalent distance D or Dl illustrated in figs 1, 2 and 3, taking the length ~ of bristles or fibers utilized in prior art methods of embodiment as par, and the objects that the invention sets out to achieve are amply realized.
A result of this second effect is that one obtains an overall length of contact L' between the fibers and the surface -to be swept that is consider-ably greater than the length of the solid back l of the broomhead, an advantage inasmuch as one is pro-vided with an implement (be it broom or brush~ more ~L2~L~2~
eÇfective in ultima-te use than similar types obtaln-able wi.th prior art methods.
In order to ensure optimum coplanari-ty o~ the -tips of tuf-ted fibers in practical appllcat:ion of 05 the method, the applicant envisages utilization of two distinct fiber lengths, the shor-ter serving for tufts in the middle section of th0 surface 4. Longer fibers will be trimmed back during the final s-tages of the broomhead's assembly. This operation permits of trimming back the tips of all the tufts into a plane parallel with surface 4 (or indeed angled with respect thereto, should the requirement be Por a broom whose handle will slant naturally tpward the user with the fibers res-ting on the ground).
Referring to Pig 6, it will be seen that a favorable effect is undoubtedly produced in sweeping tight corners and/or skirtings, utilizing a broom embodied according to thé invention, since by urglng the broom into such corners or skirtings, the outer tufts 8 are dePlected in such a way as to be forced increasingly into the corner or skir-ting and sweep that much more efficiently as a result.
In practical application the sloping lands 3 may be angled with respect to a direc-trix disposed transversely to the surface 4 of the solid back 1~
,.
~2:44~
distributed uniformly or otherwise on the stre-tches la concernedt and exhibi-t either one or more hoLes in which -to insert the -tuEted bris-tles or fibers 8.
Moreover, the solid back 1 might exhibit any one of 05 a variety of shapes and forms, even for the purpose of appearances alone; for ins-tance, the str~tches la nearest the -two outermost ends 2 might be embodied with sloping lands 3 of dimensions such as to form, substantially, a single curved plane as illustrated in figs 7 and 8.
Again, the lands 3 could be angled relative to the transverse dimension of the solid back 1, in which case it will be the outermost lands once more that exhibit the more accentuated inclinations. What is more, the stretches ta provided with lands might be bent upwards, profiled, or curved in any fashion whatever.
Referring still to figs 7 and 8, the back I
may be provided at the middle section of its bottom surface ~ with a sunken stretch 9 such as will allow exploitation of a longer length of tufted fiber 8 as well as reduce waste in trimming. The fact of being able to utilize tufts of a certain length, in the sunken stretch at least, will ensure the embodiment of a broom possessing greater flexibility and, as a Z~
result, enhanced sweep:ing ef~iciercy.
Likewise a-t this middle section of the bottom surace 4 of -the sol:id back 1, the holes 16, and by defini-tion, the tufts 87 may be disposed perpendicu-05 lar to the longitudinal plane, or alternatively, may be disposed such as to center on the fulcrum point denoted 7, thereby ensuring improved, more uniform distribution of the tips of the fibers.
In practical application, the back 1 of the broom or brush may be embodied in any appropriate material whatever, and the lands could be incorpor-ated either during a molding stage (were the back to be fashioned in plastic) or by subsequent machining.
The lands themselves might be embodied, furthermore, with flat, convex, or concave surfaces.
_ _ 03 The invention relates to the manufacture of 04 brooms, brushes and similar articles utilized for 05 household or general sweepiny and cleaning.
06 An understanding of the invention will be 07 obtained by reading the description below, in conjunction 08 with the following drawings, in which:
09 Figures 1, 2 and 3 illustrate broomheads obtained with prior art methods, 11 Figure 4 is the schematic representation, viewed 12 from one side and in cutaway, of a broomhead obtained with 13 the method disclosed herein;
14 Figures S and 8 are schematic represenatations, viewed in perspective from one side, of two alternative 16 embodiments of a broom back obtained with the method 17 disclosed herein;
18 Figure 6 is the schematic representation of a 19 special effect obtainable in practical application, showing a broom obtained with the method disclosed herein;
21 Figure 7 is the schematic represenation, viewed 22 from one side, of a broom incorporating a back the 23 embodiment of which is a variation on that of Figure 4.
~ll244~
.
Conven-tional manu~acture of such cl.ean.ing aids, at industrial level, envisages the embodiment of a solid back wh~ch carries small bunches either of na-tural bristles or of synthetic fibers, Icnown as tufts, and permits of attaching a staff or handle for ultimate use, by hand, oE the Einished ar-ticle.
Such backs are generally flat, though in some embodiments may either exhibit curved or bent-upward longitudinal ends, or be curved through their entire lengkh, as illustrated in figs 1~ 2 and 3, and are provided with stopped holes distributed uniformly over the surface opposite that to which the handle`
. is attached.
The holes thus produced accommodate tufts of fibers. Such fibers, of a given selected type, are bunched together into small bundles approximately twice the length X (fig 1) of the formed tuft which ultimately projects from the back of the finished broomhead, the bundle of fibers being bent double into a U thereby providing a fold by means of which ~'~4~Z~Z
to facilitate insertlon of the tuft into a corres-ponding hole offered by the back. Dril:ling of,holes in the back and insertion of the -tuPts therein are operations accomplished by :Loca-ting the baclc in a 05 three-dimensional pantograph-type copying ji~ which permits ~ovement about a fulcrum coincident with the axis passing through the center of the back, and located at a point distanced from the side to which the handle is ultimately attached~ In thi.s way it becomes possible to produce hoIes in the solid back.
that are angled with respect to -the surface fro~
which the tufts project, in such a way as to fan out the pattern of the tufts, at least toward the outer ends of the back.
Such fanning-out of the tuft pattern performs two functions: first, that of increasing the overall length of contact L between the fibers and the sur-face to be swept, in relation to the len~th of the back; and second, that of permitting access to tioht corners and skirtin~s when sweeping, without any ob-struction from the back of the broomhead itself.
The prior art makes provision, when utilizin~
flat backs of the type illustrated in fig 1, ei-ther for rounding-off or beveling the ends, which permits only a limited fan-out of the tuft pattern h~wever, ~, . .
~;~491~;~V~3 as malleuver of the back relcl-tive to the tool dur-ing drilling is poss:ibLe only in a very lim:itecl measure.
The drill bits are in fact unable -to penctrate a surface sharply angled relative to their own a~:is, 05 and must be safeguarded erom the risk of breakage caused -through excessive bending stress. The result is that the distance D be-tween the outermost ends of the back and the tips of the outer tufts (which pro-ject from the outermost ends of the back) is often insufficient to ensure that the back of the broom-head will not itself constitute an obstruction to efficient sweeping of tight corners and skirtings.
In an attempt to improve the situation thus described, use has been made of backs as illustrated in figs 2 and 3 of the drawings. In these i~stances however, the overall length of contact L between the fibers and the surface to be swept is shortened, by reason of the fact that the tips of the outer tufts are raised from the surface on which tufts located along the middle section oE the back come to rest.
At all events, the distance D between the outermost ends of the back and the tips of the outer tufts is barely greater than the distance D as illustrated in fig 1, and as such, is insufficient to provide an effective solut.ion to the problem of sweepin~ tight d~ ~
~2~
corners and skirtings.
S-tudying the -type of relati.ve movem.ent wi.th which a brush or broom back is usually :invested when drilling holes ancl subsequently inserting -the tuEts 05 (bristle or synthetic fiber), the applicant observes that, were the back to be provided with a series of flat, concave or convex angled surfaces, along the longitudinal stretches nearest -the outermost ends at least, such as will offer points of contac-t lying at right angles to the drill-bits and tufting tools in any given location, it would be possible to embody a broomhead, for exa-nple, wherein the tufts projecting from the solid back could be fanned out to a notable degree. Furthermore, the applicant observes that by inserting tufts of greater length into these holes loFated near the outermost ends of the back, than those inserted into the uniformly-distributed holes Oe the middle section, one obtains a broomllead which in addltion to exhibiting a notably fanned-out tuft pattern, is embodied such that the tips of all the tufted bristles or fibers may lie within a common plane. The combined effect of these two techniques would be such as to permit embodiment of a broom capable of affording the optimum solution to those problems described above.
124~2~;~
02 SUMMARY OF THE INVEN~IO~
___ 03 In the light of the Eoregoing bbservations, the 04 applicant discloses a me-thod for making brooms, brushes 05 and similar articles, comprising the following steps:
06 providing a solid back which carries tufted fibers and 07 exhibits a surface, at the opposite side to that where a 08 handle is ultimately attached, providing at least along 09 the stretches nearest to its outermost ends a series of sloping lands which create an acute angle with the surface 11 and of which the inclination relative to the surface 12 becomes progressively less accentuated. The nearer the 13 land is located to the middle section of the solid back;
14 forming in each sloping land holes or seats the axis of which are disposed substantially normal to the land; and 16 forming, in the remaining part of the surface, uniformly 17 distributed holes or seats, inserting tufted fibers of 18 desired length in the holes of the sloping lands, and in 19 the holes of the middle section of the same surface, and providing the tips of all the tufted fibers lie in a 21 common plane.
'~
In a preferred version of the method as clis-closed herein~ the tips of all the tufts inserted into the back are trimmed by shaving, to the end of aligning the tips of the tufted fibers to a greater degree of prec.ision within the common plane afore-. said; also, the shaving operation is carried out in such a way as to ensure that the plane lies parallel to the surface from which the tufts project.
In a first variation of the method, by means of which it is sought to incline the handle of the broom with respect to the vertical, thereby afford-ing advantage to the user in certain circumstances, shaving is carried out in such a way that the p~lane in which the tips of tufted fibers are caused to lie will be angled in relation to the surface from which the tufts project.
In a second varia-tion ofthe method, the angle of the sloping lands is such that each single land, viewed from one side, lies substantially normal to a straight line that connects it with a fulcrum point about which the back is rotated for the purposes of ~ .
124~
Referr.ing to f:igs 4 ancl S, the solid baclc I
of a broom- or brush-head according to the invention has stretches la nearest the outermost ends 2 which exhibit a series of sloping lands 3 formed on the surface 4 opposite the surface 5 which connec-ts with the staff, or handle (not denoted in the drawings).
These lands 3 form an acute angle n with the surface 4 of -the back 1, w~ich diminishes progress- -ively the nearer the single land 3 is located to the middle section of the back 1, hence to -tha-t part of the surface 4 exhibiting no lands. For example, the angle denoted ni descriptive of the land 3l in fig 4 located nearest the middle section of the sy ~ ce 4, is much narrower than the angle n descrip~ive:of the _ land 3 located at the outermost end of the back 1.
As fi~ S illustrates, the lands 3 are formed on the surface 4 in a number of files denoted F, Fl and F 2 which lie parallel to the longitudinal-median directrix of the solid back 1, and are disposed in ~ , :
.
~2~2~1Z
ranks R-, R 2 Lying normal to the same direc-trlx.
- Observing -the finished broomhead, it wil] be seen that such an arrangement allows tufting o~ the surface 4 to maximum possib:Le capacity; viewing the 05 broom from one side, practical:Ly no voids will be discernable between the ~arious tufts makin~ up the broomhead.
In a preferred version of the methodJ the angle of the lands 3 is determined such that each single land lies substantially normal to a straight line 6 connecting it with a fulcrum point 7 about which the solid back 1 is rotated for the purposes of drilling holes, and subsequently, of inser-ting tufted fibers 8 thereinto.
Embodied thus, one has the possibility when drilling the solid back 1, of offering parts of its surface 4 to the drill bits which are disposed at right angles, or substantially at right angles, to the axes of the bits themselves, thereby permi-tting O operation of the bits without any danger of breakage occurring by reason of their being subjected to ex-cessive bending stress. The result of this procedure is that the tufts 8, especially those toward the two outermost ends 2 of the broomhead, assume a notably fanned-out appearance such as will greatly favor an ~2~za~
additional eEfect (shortly -to be described) which derives from another ~eature of the method.
As mentloned pre-viously in the introduc-tory part of the application, it is important that the 05 tips of the tufted fibers located nearest the outer-most ends 2 of the back 1 be dis-tanced considerabLy from these ends to facilitate the sweepin~ of ti~ht corners and skirtings. In the method accordin~ to the invention, fibers to be inserted in the holes 16 drilled in the lands 3 are selected such that the length of the tufts 8 in one rank differs from that of the tufts in the next. In this way one obtains a distance D Ibetween the tips of the outer tufts 8 and the outermost ends 2 of the baclc 1 much greater than the equivalent distance D or Dl illustrated in figs 1, 2 and 3, taking the length ~ of bristles or fibers utilized in prior art methods of embodiment as par, and the objects that the invention sets out to achieve are amply realized.
A result of this second effect is that one obtains an overall length of contact L' between the fibers and the surface -to be swept that is consider-ably greater than the length of the solid back l of the broomhead, an advantage inasmuch as one is pro-vided with an implement (be it broom or brush~ more ~L2~L~2~
eÇfective in ultima-te use than similar types obtaln-able wi.th prior art methods.
In order to ensure optimum coplanari-ty o~ the -tips of tuf-ted fibers in practical appllcat:ion of 05 the method, the applicant envisages utilization of two distinct fiber lengths, the shor-ter serving for tufts in the middle section of th0 surface 4. Longer fibers will be trimmed back during the final s-tages of the broomhead's assembly. This operation permits of trimming back the tips of all the tufts into a plane parallel with surface 4 (or indeed angled with respect thereto, should the requirement be Por a broom whose handle will slant naturally tpward the user with the fibers res-ting on the ground).
Referring to Pig 6, it will be seen that a favorable effect is undoubtedly produced in sweeping tight corners and/or skirtings, utilizing a broom embodied according to thé invention, since by urglng the broom into such corners or skirtings, the outer tufts 8 are dePlected in such a way as to be forced increasingly into the corner or skir-ting and sweep that much more efficiently as a result.
In practical application the sloping lands 3 may be angled with respect to a direc-trix disposed transversely to the surface 4 of the solid back 1~
,.
~2:44~
distributed uniformly or otherwise on the stre-tches la concernedt and exhibi-t either one or more hoLes in which -to insert the -tuEted bris-tles or fibers 8.
Moreover, the solid back 1 might exhibit any one of 05 a variety of shapes and forms, even for the purpose of appearances alone; for ins-tance, the str~tches la nearest the -two outermost ends 2 might be embodied with sloping lands 3 of dimensions such as to form, substantially, a single curved plane as illustrated in figs 7 and 8.
Again, the lands 3 could be angled relative to the transverse dimension of the solid back 1, in which case it will be the outermost lands once more that exhibit the more accentuated inclinations. What is more, the stretches ta provided with lands might be bent upwards, profiled, or curved in any fashion whatever.
Referring still to figs 7 and 8, the back I
may be provided at the middle section of its bottom surface ~ with a sunken stretch 9 such as will allow exploitation of a longer length of tufted fiber 8 as well as reduce waste in trimming. The fact of being able to utilize tufts of a certain length, in the sunken stretch at least, will ensure the embodiment of a broom possessing greater flexibility and, as a Z~
result, enhanced sweep:ing ef~iciercy.
Likewise a-t this middle section of the bottom surace 4 of -the sol:id back 1, the holes 16, and by defini-tion, the tufts 87 may be disposed perpendicu-05 lar to the longitudinal plane, or alternatively, may be disposed such as to center on the fulcrum point denoted 7, thereby ensuring improved, more uniform distribution of the tips of the fibers.
In practical application, the back 1 of the broom or brush may be embodied in any appropriate material whatever, and the lands could be incorpor-ated either during a molding stage (were the back to be fashioned in plastic) or by subsequent machining.
The lands themselves might be embodied, furthermore, with flat, convex, or concave surfaces.
Claims (13)
1. A method for making, brushes and similar articles, comprising the following steps:
providing a solid back which carries tufted fibers and exhibits a surface, at the opposite side to that where a handle is ultimately attached, providing at least along the stretches nearest to its outermost ends a series of sloping lands which create an acute angle with said surface and of which the inclination relative to the surface becomes progressively less accentuated the nearer the land is located to the middle section of the solid back;
forming in each sloping land holes or seats the axis of which are disposed substantially normal to the land; and forming, in the remaining part of the same said surface, uniformly distributed holes or seats, inserting tufted fibers of desired length in the holes of the sloping lands, and in the holes of the middle section of the same said surface, and providing that the tips of all the tufted fibers lie within a common plane.
providing a solid back which carries tufted fibers and exhibits a surface, at the opposite side to that where a handle is ultimately attached, providing at least along the stretches nearest to its outermost ends a series of sloping lands which create an acute angle with said surface and of which the inclination relative to the surface becomes progressively less accentuated the nearer the land is located to the middle section of the solid back;
forming in each sloping land holes or seats the axis of which are disposed substantially normal to the land; and forming, in the remaining part of the same said surface, uniformly distributed holes or seats, inserting tufted fibers of desired length in the holes of the sloping lands, and in the holes of the middle section of the same said surface, and providing that the tips of all the tufted fibers lie within a common plane.
2. A method as in claim 1, comprising shaving the projecting ends of all tufts thus inserted in order to trim back the tips thereof into alignment within a common plane.
3. A method as in claim 2 wherein the shaving step is carried out in such a way that the plane in which the tufts are aligned lies parallel with the bottom surface of the solid back from which the tufts project.
4. A method as in claim 2 wherein the shaving step is carried out in such a way that the plane in which the tips of the tufts are aligned is angled with respect to the bottom surface of the solid back from which the tufts project.
5. A method as in claim 1 or 2 wherein the solid back envisages arrangement of the lands in a plurality of files lying parallel to the longitudinal median directrix of the solid back, and in ranks, aligned lying at right angles to the same longitudinal directrix; and wherein the inclination of the lands is such that, viewed from the side, the single land lies substantially normal to a straight line which connects it with a fulcrum point about which the solid back may be rotated for the purposes of carrying out the steps whereby tufts are inserted into the holes or seats formed in the lands and in the remaining part of the surface from which the tufts project.
6. A broom or brush obtained by the method of claim 1, wherein the sloping lands together creat a continuous curved plane.
7. A method as in claim 1 or 2 wherein the solid back envisages arrangement of the lands in a plurality of files lying parallel to the longitudinal median directrix of the solid back and in ranks, aligned lying at right angles to the same longitudinal directrix; and wherein the inclination of the lands is such that, viewed from the side, the single land lies substantially normal to a straight line which connects it with a fulcrum point about which the solid back may be rotated for the purposes of carrying out the steps whereby tufts are inserted into the holes or seats formed in the lands and in the remaining part of the surface from which the tufts project, wherein the tips of all of the tufts projecting from the solid back lie within a common plane.
8. A broom or brush obtained by the method of claim 1 wherein the tufts inserted into the holes or seats located at the stretches nearest the outermost ends of the back exhibit a fanned-out appearance with respect to the surface from which they project, whereas each single tuft is disposed substantially normal to a corresponding sloping land of flat, concave or convex profile offered by said stretches; and wherein the sloping lands create an acute angle with said surface the inclination of which becomes progressively less accentuated the nearer the land is located to the middle section of the solid back.
9. A broom or brush as in claim 8 wherein the sloping lands are embodied during an operation whereby the solid back is molded from a plastic material.
10. A broom or brushing as in claim 8 wherein the solid back is substantially flat.
11. A broom or brush as in claim 8 wherein the solid back exhibits stretches nearest the outermost ends which are inclined relative to the middle section such as to create an angle of less than 180° between parts of that surface of the solid back to which the handle is attached.
12. A broom or brush as in claim 6 wherein the sloping lands are angled in relation to the transverse dimension of the solid back.
13. A method as in claim 1 or 2 wherein the solid back envisages arrangement of the lands in a plurality of files lying parallel to the longitudinal median directrix of the solid back, and in ranks, aligned lying at right angles to the same longitudinal directrix; and wherein the inclination of the lands is such that, viewed from the side, the single land lies substantially normal to a straight line which connects it with a fulcrum point about which the solid back may be rotated for the purposes of carrying out the steps whereby tufts are inserted into the holes or seats formed in the lands and in the remaining part of the surface from which the tufts project, wherein the tips of all of the tufts projecting from the solid back lie within a common plane, and the sloping lands are angled in relation to the transverse dimension of solid back.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT8405127U IT8405127V0 (en) | 1984-11-30 | 1984-11-30 | SWEEPER OR BRUSH WITH SHAFT PROVIDED WITH INCLINED WALLS FOR THE SUPPORT OF TIRES OR BUNCHES OF FIBERS MOUNTING THE CLEANING BODY |
| IT5127B/84 | 1984-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1244202A true CA1244202A (en) | 1988-11-08 |
Family
ID=11118016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000483828A Expired CA1244202A (en) | 1984-11-30 | 1985-06-12 | Method for the embodiment of brooms, brushes and similar articles, and a broom or brush obtained therewith |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4606091A (en) |
| CA (1) | CA1244202A (en) |
| IT (1) | IT8405127V0 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5378419A (en) * | 1990-10-15 | 1995-01-03 | Capoccia; John S. | Method for transferring patterns to a stipplable topping compound using a stipple brush |
| GB2322796A (en) * | 1997-03-05 | 1998-09-09 | Bradley Bayne Brushes Ltd | Brush for cleaning wheely bins |
| US6073298A (en) * | 1998-09-08 | 2000-06-13 | O`Brien; Richard E. | Grout cleaning brush |
| US6148466A (en) * | 1999-04-08 | 2000-11-21 | Smitelli, Iii; Joseph J. | Side surface and corner pool brush |
| DE10058629C2 (en) * | 2000-11-25 | 2002-10-17 | Freudenberg Carl Kg | Surface cleaning device |
| US6739015B1 (en) | 2001-09-27 | 2004-05-25 | Erwin Berthold | Cleaning brush device |
| DE10155473A1 (en) * | 2001-11-12 | 2003-06-05 | Boucherie Nv G B | Process for attaching bristle tufts to carrier plates |
| WO2005044042A2 (en) * | 2003-07-03 | 2005-05-19 | Freudenberg Household Products Lp | Broom, method, and broom display |
| FR2858539B1 (en) * | 2003-08-06 | 2007-01-12 | Lbd Menage | BROOM WITH VARIABLE FLEXIBILITY BRUSH. |
| WO2007068026A1 (en) * | 2005-12-12 | 2007-06-21 | Cozens, Phillip, Alan | Brush |
| US10188200B1 (en) * | 2007-01-02 | 2019-01-29 | Jess L. Hetzner | Modular designed pool cleaning tool |
| US8024833B2 (en) * | 2008-05-16 | 2011-09-27 | Monoarch Inc. | Swimming pool and deck brush |
| WO2014099473A1 (en) * | 2012-12-21 | 2014-06-26 | 3M Innovative Properties Company | Broom comprising bristles of multiple lengths |
| US20190335887A1 (en) * | 2018-05-01 | 2019-11-07 | Garant Gp | Broom and method of fabrication thereof |
| US20230093907A1 (en) * | 2021-09-30 | 2023-03-30 | John J. Buettgen | Crematory Brush |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US551994A (en) * | 1895-12-24 | Manufacture of brushes | ||
| US632748A (en) * | 1898-12-16 | 1899-09-12 | George A Park | Brush. |
| GB506945A (en) * | 1938-03-22 | 1939-06-07 | Modern Brushware Ltd | Improvements in or relating to brooms and brushes |
| US3402413A (en) * | 1967-12-11 | 1968-09-24 | Michael C. Gibellina | Swimming pool brush guide |
-
1984
- 1984-11-30 IT IT8405127U patent/IT8405127V0/en unknown
-
1985
- 1985-06-12 CA CA000483828A patent/CA1244202A/en not_active Expired
- 1985-06-12 US US06/743,921 patent/US4606091A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| IT8405127V0 (en) | 1984-11-30 |
| US4606091A (en) | 1986-08-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |